# Worksheet: Set of Natural Numbers

In this worksheet, we will practice checking if a number, or a set of numbers, belongs to, is included in, or is not included in the set of natural numbers.

Q1:

The set of natural numbers is .

• A infinite
• B finite

Q2:

Decide whether the answer to the following question belongs to : How many cities are there in your country?

• Abelongs to
• Bdoes not belong to

Q3:

Decide whether the answer to the following question belongs to : How many pages are there in a book?

• Abelongs to
• Bdoes not belong to

Q4:

Is a natural number?

• A no
• B yes

Q5:

Decide whether the answer to the following question belongs to : How many people are there in your family?

• Abelongs to
• Bdoes not belong to

Q6:

Decide whether the answer to the following question belongs to : What is your father’s height in metres?

• Bbelongs to

Q7:

Find the set of numbers that belong in .

• A
• B
• C
• D
• E

Q8:

Which of the following is true?

• A
• B

Q9:

Which of the following is true?

• A
• B
• C

Q10:

Is or ?

• A
• B

Q11:

Is , , or ?

• A
• B

Q12:

State the elements in given .

• A
• B
• C
• D
• E

Q13:

Is or ?

• A
• B

Q14:

Is or ?

• A
• B

Q15:

Is or ?

• A
• B

Q16:

Is or ?

• A
• B

Q17:

Find the set of natural numbers that are greater than or equal to 10.

• A
• B
• C
• D
• E

Q18:

Find the set of counting numbers that are between 4 and 7.

• A
• B
• C
• D
• E

Q19:

Which of the following completes this relation: ?

• A
• B
• C
• D

Q20:

Find the set of natural numbers between and .

• A
• B
• C
• D

Q21:

Which of the following is a natural number: 9.6, 8,870, , ?

Q22:

Is or ?

• A
• B

Q23:

Does your weight in kilograms belong to ?

• Ano
• Byes

Q24:

The price of one kilogram of mangoes is 34 LE. Does the price of kg belong to the set of natural numbers?

• ANo
• BYes

Q25:

List the set of natural numbers that are between and .

• A
• B
• C
• D